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(1) The average weight of the four crates is 200 pounds. Average = 200 pounds for four crates. So total weight = 200 * 4 = 800 pounds. This statement gives exactly what we wanted. Sufficient.

(2) The total weight of two of the crates is exactly three times the total weight of the other two crates.This option gives us ratio of weight. But we do not have enough information to calculate actual weight - Insufficient.

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(2) The total weight of two of the crates is exactly three times the total weight of the other two crates.

Forget conventional ways of solving math questions. For DS problems, the VA (Variable Approach) method is the quickest and easiest way to find the answer without actually solving the problem. Remember that equal numbers of variables and independent equations ensure a solution.

The first step of the VA (Variable Approach) method is to modify the original condition and the question, and then recheck the question.

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23 Feb 2018, 15:03

St 1 :The average weight of the four crates is 200 pounds. This means Total weight divided by 4 is 200. Then the total weight should be 200 x 4 = 800 pounds sufficientSt 2 : This statement gives only the ratio of weight of 2 barrels to the weight of other 2 barrels. Insufficient. So the answer is B.

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(2) The total weight of two of the crates is exactly three times the total weight of the other two crates.

Solu IMO Astatement 1 average weight of 4 crates is 200 formula of average is total/no.of items so lets take x as total x/4=200 x=800 so total is 800 statement is sufficient. A or D will be answer.statement 2 total of 2 crates is x and other 2 crates is yso x=3ytotal is x+2y don't have any value so A is the answer.

gmatclubot

Re: What is the total weight of four crates? &nbs
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26 Feb 2018, 21:50